Handed out: Wednesday, November 10, 2004
Due: Monday, November 21, 2005
Read: Disco paper
Hand-In Procedure
You are to turn in this homework during lecture. Please write up your answers to the exercises below and hand them in to a 6.828 staff member by the end of the lecture.
Disco TLB
Please fill out the pseudocode for the functions below and hand it in.
/ Disco's tlb miss handler. // Called when a memory refernce for virutal adddress // 'VA' is made, but there is not VA->MA (virtual -> machine) // mapping in the cpu's TLB. tlb_miss_handler (VA) { } // Disco's procedure which emulates the MIPS // instruction which writes to the tlb. // // VA -- virtual addresss // PA -- physical address (NOT MA machine address!) emulate_tlbwrite_instruction (VA, PA) { } // Disco's procedure which emulates the MIPS // instruction which read the tlb. // emulate_tlbread_instruction (VA) { // Hint: should this return a PA or an MA? } |
This completes the homework.